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-rw-r--r--src/inlines.c37
1 files changed, 34 insertions, 3 deletions
diff --git a/src/inlines.c b/src/inlines.c
index 8bb82f1..171247e 100644
--- a/src/inlines.c
+++ b/src/inlines.c
@@ -323,6 +323,37 @@ static bufsize_t scan_to_closing_backticks(subject *subj,
return 0;
}
+// Destructively modify string, converting newlines to
+// spaces, then removing a single leading + trailing space.
+static void S_normalize_code(cmark_strbuf *s) {
+ bufsize_t r, w;
+
+ for (r = 0, w = 0; r < s->size; ++r) {
+ switch (s->ptr[r]) {
+ case '\r':
+ if (s->ptr[r + 1] != '\n') {
+ s->ptr[w++] = ' ';
+ }
+ break;
+ case '\n':
+ s->ptr[w++] = ' ';
+ break;
+ default:
+ s->ptr[w++] = s->ptr[r];
+ }
+ }
+
+ // begins and ends with space?
+ if (s->ptr[0] == ' ' && s->ptr[w - 1] == ' ') {
+ cmark_strbuf_drop(s, 1);
+ cmark_strbuf_truncate(s, w - 2);
+ } else {
+ cmark_strbuf_truncate(s, w);
+ }
+
+}
+
+
// Parse backtick code section or raw backticks, return an inline.
// Assumes that the subject has a backtick at the current position.
static cmark_node *handle_backticks(subject *subj, int options) {
@@ -338,8 +369,7 @@ static cmark_node *handle_backticks(subject *subj, int options) {
cmark_strbuf_set(&buf, subj->input.data + startpos,
endpos - startpos - openticks.len);
- cmark_strbuf_trim(&buf);
- cmark_strbuf_normalize_whitespace(&buf);
+ S_normalize_code(&buf);
cmark_node *node = make_code(subj, startpos, endpos - openticks.len - 1, cmark_chunk_buf_detach(&buf));
adjust_subj_node_newlines(subj, node, endpos - startpos, openticks.len, options);
@@ -347,6 +377,7 @@ static cmark_node *handle_backticks(subject *subj, int options) {
}
}
+
// Scan ***, **, or * and return number scanned, or 0.
// Advances position.
static int scan_delims(subject *subj, unsigned char c, bool *can_open,
@@ -1314,7 +1345,7 @@ bufsize_t cmark_parse_reference_inline(cmark_mem *mem, cmark_chunk *input,
// parse optional link_title
beforetitle = subj.pos;
spnl(&subj);
- matchlen = scan_link_title(&subj.input, subj.pos);
+ matchlen = subj.pos == beforetitle ? 0 : scan_link_title(&subj.input, subj.pos);
if (matchlen) {
title = cmark_chunk_dup(&subj.input, subj.pos, matchlen);
subj.pos += matchlen;